TY - GEN
T1 - Comparison of bio-impedance changes and EMG activity during daily events
AU - Song, Chul Gyu
AU - Kim, Keo Sik
AU - An, Yang Su
AU - Seo, Jeong Hwan
PY - 2008
Y1 - 2008
N2 - A conventional method for measuring abdominal pressure involves the use of a fluid-filled rectal catheter. However, this method has some drawbacks, so it is limited to ambulatory urodynamics monitoring study. In this study, we proposed a novel method for estimating abdominal pressure in non invasive manner by changes in bio-impedance and electromyographic (EMG) signals. As a preliminary, we compared the bio-impedance changes and EMG activity during daily events, such as cough, sneeze and lumbar movement, while the abdominal pressure increased. The correlation coefficients between changes in bio-impedance and EMG signals, according to increases in abdominal contractions, were 0.72, 0.96, 0.90, 0.84 and 0.78 for the weak, strong, stronger, vigorous and maximal contraction, respectively. Also, daily activities such as coughing, sneezing and conversation, were sensitively monitored by measuring the change in amplitude of the bio-impedance signals, whilst EMG signals could not be used to detect these activities; therefore, the bio-impedance method is a more useful means of non-invasively measuring the changes in the abdominal pressure for urodynamics monitoring.
AB - A conventional method for measuring abdominal pressure involves the use of a fluid-filled rectal catheter. However, this method has some drawbacks, so it is limited to ambulatory urodynamics monitoring study. In this study, we proposed a novel method for estimating abdominal pressure in non invasive manner by changes in bio-impedance and electromyographic (EMG) signals. As a preliminary, we compared the bio-impedance changes and EMG activity during daily events, such as cough, sneeze and lumbar movement, while the abdominal pressure increased. The correlation coefficients between changes in bio-impedance and EMG signals, according to increases in abdominal contractions, were 0.72, 0.96, 0.90, 0.84 and 0.78 for the weak, strong, stronger, vigorous and maximal contraction, respectively. Also, daily activities such as coughing, sneezing and conversation, were sensitively monitored by measuring the change in amplitude of the bio-impedance signals, whilst EMG signals could not be used to detect these activities; therefore, the bio-impedance method is a more useful means of non-invasively measuring the changes in the abdominal pressure for urodynamics monitoring.
KW - Abdominal pressure
KW - Bio-impedance change
KW - EMG activity
KW - Urodynamics study
UR - https://www.scopus.com/pages/publications/63649139246
U2 - 10.1109/BIOCAS.2008.4696951
DO - 10.1109/BIOCAS.2008.4696951
M3 - Conference paper
AN - SCOPUS:63649139246
SN - 9781424428793
T3 - 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
SP - 369
EP - 372
BT - 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
T2 - 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
Y2 - 20 November 2008 through 22 November 2008
ER -